Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
Fast, Reliable HVAC Cleaning Across Brentwood
HVAC cleaning in Brentwood, CA typically costs between $450 and $1,100 for a complete system cleaning, depending on home size and how much buildup has accumulated in the ducts and coils. Most Brentwood homeowners call us when they notice weak airflow, a musty smell from the vents, or dust settling back onto furniture within days of wiping it down. Our HVAC Cleaning team works throughout Brentwood weekly, from the older ranch-style streets near Liberty Union High School up to the newer developments east of Shadow Lakes. Call (737) 727-2314 and you’ll reach a live person who can walk you through exactly what the job involves and what it’ll cost before anyone sets foot in your home.
Why Cardinal Air Duct Cleaning Is Brentwood’s Preferred HVAC Cleaning Company
Brentwood homeowners use us for one reason that keeps getting repeated in their reviews: we write the price down before the work starts and it doesn’t move. No per-vent games, no surprise second-return discoveries that inflate the bill. Omar Haddad runs our crew, and he’s built the whole operation around the idea that a homeowner should know the tech’s name, the exact arrival window, and the final invoice amount before a single panel comes off the air handler.
We’re part of the Relay Home Co. family, founded in 2005, which means every booking runs on The Relay Standard: a live trackable arrival time, before-and-after photo proof of the work, and a digital invoice you can pay from your phone. Brentwood customers regularly tell us the photos were the part they didn’t expect to care about, until they saw what had been living in their return ducts. We’re also the only crew in the area that backs every job with a 365-Day Done Right Promise. If the work isn’t right within a full year, we return and correct it at no charge.
AC Coil Cleaning in Brentwood
AC Coil Cleaning in Brentwood is the service we recommend most often for homes where the AC runs hard from June through September and the indoor evaporator coil has never been touched since installation. Your evaporator coil sits inside the air handler and is responsible for pulling heat out of the air. When it’s coated in a layer of dust, pet dander, and cooking grease, the system can’t transfer heat efficiently, so it runs longer cycles, your energy bill climbs, and the house still feels humid. On Brentwood’s older two-story homes, we frequently find coils that haven’t been cleaned in 15 years, often because the coil is buried behind an access panel nobody knew existed.
Brentwood evaporator coil cleaning runs $200 to $400 as a standalone service, and $350 to $650 when combined with a full duct and blower cleaning. We use a coil-safe cleaning solution, flush the condensate line, and check the drain pan while we’re in there. The whole job takes 60 to 90 minutes on most systems.
How we clean the evaporator coil
We remove the air handler panel, inspect the coil with a camera, and apply a foaming cleaner that breaks down the compacted layer without corroding the aluminum fins. Then we rinse carefully and verify the condensate drain is flowing. Every Brentwood job includes a photo of the coil before and after.
Signs your Brentwood coil needs it
Short cycling, frozen lines on hot days, and rooms that never quite reach the thermostat setpoint are the three most common indicators we see in Brentwood. If you’ve already changed the filter and the problem persists, a clogged coil is usually next on the list.
AC Cleaning in Brentwood
AC Cleaning in Brentwood goes beyond the coil to the components that move and condition your air: the blower motor assembly, the condenser unit outside, and the return and supply plenums. A full AC cleaning means we’re not just polishing the visible parts. We’re clearing the airflow path end to end so the system isn’t fighting its own restrictions. In Brentwood we recommend a full AC cleaning every 3 to 5 years for most households, sooner if you’ve done remodeling work or have multiple pets.
A complete AC cleaning in Brentwood typically runs $450 to $800 for a single system, including the blower, coil, plenum, and condensate treatment. Two-system homes, common in the larger custom builds near Deer Ridge, run $800 to $1,100. We always quote one flat price for the whole system before work starts, never a per-vent breakdown that gets renegotiated at the door.
Blower motor and housing
The blower wheel on a Brentwood AC system cans pick up a thick layer of dust that throws the wheel off balance and strains the motor bearings. We pull the blower, clean each fin, and vacuum the housing, then check the amp draw before and after. A drop in amp draw after cleaning is the clearest measurable proof that the cleaning mattered.
Condenser coil treatment
Outside, the condenser unit takes a beating from Brentwood’s summer dust, cottonwood fluff along Marsh Creek, and grass clippings from weekly mowing. We clean the fins, clear the surrounding area, and treat the coil to improve heat rejection. This is the outdoor half of the equation most duct-only companies skip.
Trusted Brands We Service in Brentwood
We service and clean systems from every major manufacturer you’ll find in Brentwood homes: Carrier, Trane, Lennox, Goodman, Rheem, and American Standard. We also stock filtration upgrades from Aprilaire and Guardsman for Brentwood customers who want better air quality after the cleaning is done. On the equipment side, our trucks carry Rotobrush rotary brush systems for duct agitation, Nikro HEPA-rated negative air machines for extraction, and Abatement Technologies containment units when we need to isolate a crawlspace or attic run. If you’ve got a brand-specific issue, call (737) 727-2314 and we’ll tell you straight whether it’s a cleaning issue or a repair issue, and what it’ll cost either way.
Common HVAC Cleaning Problems We See in Brentwood Homes
- Original fiberglass duct board from the 1970s and 1980s. The ranch homes off Balfour Road and the older two-story builds near Central Boulevard often still run original fiberglass duct board. Cleaning this material requires a specific approach, because aggressive agitation can tear the inner liner and send glass fibers into the living space. We inspect first, then choose the right tool for the material.
- Return ducts buried in slab or soffits. In many Brentwood homes built between 1985 and 2005, the return-side runs are hidden in the slab or run through soffits above hall closets. That changes the access plan before we quote, not after the tech shows up and discovers a second return duct that wasn’t on the estimate.
- Drywall dust from remodeling projects. Brentwood has seen steady renovation activity in the last decade, and drywall dust is the number one thing we find choking blowers and returns in homes that were recently remodeled. That fine white powder settles through the return grates and bakes onto the blower wheel.
- Pet hair packed into the return plenum. Homes with two or more dogs or cats, especially long-haired breeds, accumulate dander and hair that the filter never catches because it bypasses around the edges. We find dense mats of it on the upstream side of the coil, cutting airflow by half or more.
Pricing for HVAC Cleaning in Brentwood, CA
A full HVAC cleaning for a typical single-system Brentwood home runs $450 to $800. Two-system homes run $800 to $1,100. AC coil cleaning alone runs $200 to $400. AC cleaning that includes the blower, coil, and condenser treatment runs $350 to $650 when paired with a duct cleaning, less as a standalone. What moves the price is access difficulty, the age and condition of the duct material, and whether you need one system or two cleaned. You’ll get a written price before any work begins, and that number doesn’t change at the door. Call (737) 727-2314 for a free estimate specific to your Brentwood home. The estimate is free, and the quote is the quote.
We Also Serve Cities Near Brentwood
Our crews cover Brentwood and the surrounding East Contra Costa communities. We regularly work in Oakley, Discovery Bay, Antioch, and Clayton, with the same flat per-system pricing and the same written-quote policy in every one of them. If you’re just outside Brentwood proper, call and we’ll confirm your address is in our service area.
Serving Brentwood, CA - Our Local Coverage Area
We’re based in the Brentwood area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About HVAC Cleaning in Brentwood
Every 3 to 5 years for most Brentwood homes, and not because the calendar says so. The real triggers are remodeling dust, multiple pets, smokers in the household, or visible debris at the registers. If none of those apply and your airflow feels fine, you probably don’t need it yet. If you’re not sure, call (737) 727-2314 and we’ll talk you through a quick self-check over the phone before scheduling anything.
One flat price for the whole system, always. We don’t do per-vent pricing, and we don’t discover extra vents once the tech is in the house. The price Omar Haddad’s crew writes down before work starts is the price you pay at the end. It’s the whole reason Brentwood homeowners choose us over the coupon mailers.
We start with a camera inspection of the supply and return runs so we know what we’re dealing with, especially on older fiberglass duct board. Then we set up negative pressure with a Nikro HEPA machine, meaning the loosened debris goes straight into the vacuum and not back into your living room. We agitate the ducts with Rotobrush tools sized for your duct material, clean the coil and blower, and shoot before-and-after photos of the same runs so you see exactly what was removed. You get those photos in your final report.
Yes, and in Brentwood’s summer heat, this is usually the part that matters most. A clean evaporator coil transfers heat properly, so the AC reaches the thermostat setpoint faster and cycles off instead of running all afternoon. A clean blower wheel draws fewer amps and runs quieter. We measure amp draw before and after on every blower cleaning, and we’ve seen meaningful drops on systems that hadn’t been cleaned in a decade or more.
Scheduling depends on how full the calendar is, not a guarantee we’ll pretend to make. A live person answers the phone 24/7, so call (737) 727-2314 and we’ll tell you the next available window. You’ll get a live trackable arrival time if we can fit you in, and if not, you’ll get the first available slot without any pressure tactics.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Brentwood, CA.




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